Apparatus for cutting pipes, rods, &amp;c.



Patented sept.' 9, |902.

P..w|NN. APPARATUS FOR CUTTING PIPES, RODS, &c.

(Application ledrOct. 25, 1901.)

2 Sheets-Sheet l.

(No Model.)

WWESSES:

ATORNEYS m: Ncnms PETERS cc, PHoaLlTHD.. WASHINGTON. Dv c.

No; 708,790. -jl'temed sept. '9, |902;

l P. wmn.

APPARATUS FOB CUTTING PIPESf-ROD'S, vLc.

(Application 111ml Oct. 25, 1901.)

(No Model.)

. 2 Sheets-Sheet 2.

EN Erg UNITED ySit/mins `PATENT FFICE.

PHILIP WINN, OF BIRMINGHAM, ENGLAND.`

APPARATUS FOR CUTTING PIPES, RODS, 86C.

SPECIFICATION forming part of Letters Patent No. 708,790, datedSeptember 9, 1902.

Application filed October 25, 1901. Serial No. '79,930- (No model.) f

To @ZZ whom, t may concern:

Be it known thatI, PHILIP WINN, a subject of the King of Great Britain,and a resident of Birmingham, England, have invented certain new anduseful Improvements in Apparatus for Cutting Pipes, Rods, &c., of whichthe following is a specification.

My invention has forits object an improved apparatus for cuttingvpipes,rods, and the like, whereby the operation of cutting is made easier ofaccomplishment and a better result always obtained.

In carrying my invention into practice I make use of two or morecutting-tools which may be eitherthe ordinary disk cutters orparting-tools or a combination of the same or other suitablecutting-tools in conjunction with two doublebearingorsupportingrollers.Thecutters are mounted in the hook or curved part of the frame of theapparatus, which is somewhat similar to that of an ordinary pipe-cutter,and the bearing or supporting rollers are mounted 'in a block upon theend of a screwed rod passing through a socket at the other end of theframe. This screwed rod serves to advance the bearing or supportingrollers, thus, in effect, feeding the cutters into the work, and asthere are four or more points of support, provided the work iseifectually embraced so that the action of feeding the cutters cannotdisplace it, and as the non-cutting points are rollers, friction to alarge extent is eliminated, thus facilitating the cutting operation. Asthe friction-rollers are preferably made of hardened steel, allappreciable Wear can be obviated, andconsequently the efficiency of theapparatus maintained.

In order that my invention may be more clearly understood and easilycarried into practical eect, I have appended hereunto a double-sizedsheet of drawings upon which I have illustrated my apparatus for cuttingtubes.

Figure l is a side View of my tube-cutting apparatus or tool. Fig. 2 isa front View of Fig. l. Fig. 3 is a similar view to Fig. l, showing thehead of my tube-cutting apparatus or tool in part section. Fig. 4 is acrosssectional View of the head of my tube-cutting apparatus or tool,taken on the line l 2 of Fig. l.

a combination of the same or other suitable cutters in conjunction withtwo double bearing or supporting rollers.

In the tube-cutting apparatus or tool illustrated on the accompanyingdrawings I have shown two disk cutters A A', mounted in the hook orcurved part or jaw b of the frame B, which is somewhat similar to thatof an ordinary pipe-cutter. The bearing or supporting rollers D, D', D2,and D8 are mounted sufficiently far apart to provide a support or steadyon each side of the cut in the block E, which fits into the sleeve F onthe screwed end of the rod H and passes through the socket b? at theother end of the frame B. This block E is provided with the slots e' e2,in which the two sets of bearing or supporting rollers D D and D2 D3 aremounted, each of which is free to turn independently of the other, andat the back of the block E the lug or projection e3 is formed, whichfits into the slot or opening b3 in the frame B, so as to act as a guide`or steady for the block when setting the tool. The screwed rod H, whichpasses up the hollow stern e4 of the block and is held therein by thepin e5, serves to advance the bearing-rollers, thus, in eect, feedingthe cutters onto the work, and as there are four or more points ofsupport provided the. work iseffectually embraced, so that the action offeeding the cutters cannot displace it, and as the non-cutting pointsare rollers, friction to a large extent is eliminated, thus facilitatingthe cutting operation.`

The sleeve F, which is adjustable, is held in the socket or jaw b2 bythe thumb-screwf, as clearly shownby Fig. 3, to enable the tool to berapidly adjusted, and on the outer surface of this sleeve I form a scalewhich indicates the distance the jaws of the tool are apart. By havingtwo sets of bearing-surfaces support is provided on each side of thecut, While the clearance thus made possible immediately on the line `ofthe cut saves the bur thrown up by the cutters being crushed back intothe groove, as is the lcase in ordinary pipe-cutters; and, further, thearrangement of double bearing-surfaces serves for alining perfectly atright angles with the IOO work, which is most important, as by thismeans an inexperienced operator using my apparatus cannot help but haveit squarely on the Work when beginning to feed the eutters into thesame.

That I claim, then, is

l. In combination, a fixed jaw carrying four bearing-rollers, a sleevemovable toward land from the rollers with means for clamping it in anydesired position, a movable jaw guided by said `sleeve and means foroperatin, r the movable jaw, substantially as described.

2. 1n combination, the fixed jaw having bearing-rollers at one end and atubular portion at the other, a sleeve slidably mounted PHILIP WINN.

Witnesses II. W. BENTON INGHAM, E. S. FRIEND.

